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A Study on Laser-Arc Hybrid Weldability of Aluminium Alloy with Arc Welding Mode

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Laser-arc hybrid welding is attracting attention as a welding method that offers the advantages such as deeper penetration, faster welding speed, wider gap tolerance, sound welding bead, reduction of welding defects, etc.; its characteristics have been studied in various research projects. In this study, hybrid welding with laser and MIG welding at pulsed mode was performed for the joining of aluminium alloy. By changing arc welding mode of CMT and CMT+ pulse mixed mode during hybrid welding, it was confirmed that there are differences in the weldabilty depending on the mode. The material used in the study is A6061-T6 aluminum alloy; the laser heat source used was a fiber laser with a maximum output of 5 kW. As a result, stability of the bead was good during laser-CMT arc hybrid welding, but the bead width was relatively narrow compared to that of the other arc modes. Laser-pulsed arc and laser-CMT pulsed arc hybrid welding processes showed weldability levels of aluminium alloy that were almost the same.
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Keywords: A6061-T6 ALUMINIUM ALLOY; ARC WELDING MODE; CMT WELDING; LASER-ARC HYBRID WELDING

Document Type: Research Article

Publication date: January 1, 2015

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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